Race Condition Affecting org.apache.tomcat.embed:tomcat-embed-core package, versions [9.0.0.M1, 9.0.107)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGAPACHETOMCATEMBED-10676854
- published11 Jul 2025
- disclosed15 Jun 2025
- creditNacl, 12SqweR, WHOAMI, yyzmoo
Introduced: 15 Jun 2025
CVE-2025-52434 (opens in a new tab)How to fix?
Upgrade org.apache.tomcat.embed:tomcat-embed-core to version 9.0.107 or higher.
Overview
org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation.
Affected versions of this package are vulnerable to Race Condition on connection close when using the APR/Native connector. An attacker could trigger a JVM crash by rapidly opening and closing HTTP/2 connections. The likelihood of hitting the race condition increases if the connections are closed from the client side.